metallomesogen

https://doi.org/10.1351/goldbook.13838

Mesogen composed of molecules incorporating one or more metal atoms.

Examples: Metallomesogens may be either calamitic or discotic mesogens, respective examples of which include the following:
metallomesogen
Source:
PAC, 2012, 85, 463. (Terminology for aggregation and self-assembly in polymer science (IUPAC Recommendations 2013)) on page 479 [Terms] [Paper]